25210315123247 has 2 divisors, whose sum is σ = 25210315123248. Its totient is φ = 25210315123246.

The previous prime is 25210315123223. The next prime is 25210315123277. The reversal of 25210315123247 is 74232151301252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25210315123247 - 2⁶ = 25210315123183 is a prime.

It is a super-2 number, since 2×25210315123247² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25210315123247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25210315123277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12605157561623 + 12605157561624.

It is an arithmetic number, because the mean of its divisors is an integer number (12605157561624).

Almost surely, 2^{25210315123247} is an apocalyptic number.

25210315123247 is a deficient number, since it is larger than the sum of its proper divisors (1).

25210315123247 is an equidigital number, since it uses as much as digits as its factorization.

25210315123247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100800, while the sum is 38.

Adding to 25210315123247 its reverse (74232151301252), we get a palindrome (99442466424499).

The spelling of 25210315123247 in words is "twenty-five trillion, two hundred ten billion, three hundred fifteen million, one hundred twenty-three thousand, two hundred forty-seven".